title: Breast cancer, pregnancy, and the pill.
mesh_terms: D000293:Adolescent; D001940:Breast / Q000378:metabolism; D001943:Breast Neoplasms / Q000139:chemically induced / Q000209:etiology*; D003276:Contraceptives, Oral / Q000009:adverse effects*; D004247:DNA / Q000096:biosynthesis; D004967:Estrogens / Q000097:blood; D005260:Female; D006801:Humans; D008572:Menarche; D010060:Ovulation; D010298:Parity; D011247:Pregnancy; D011374:Progesterone / Q000097:blood; D012306:Risk
chemical_list: D003276:Contraceptives, Oral; D004967:Estrogens; D011374:Progesterone; D004247:DNA